Probably a really good use for llms would be to provide plausible looking strings that can securely transmit a public key

Edit:

Sun senator house — ruler sun arena amber army amber army. Bard 3 noble zone ancient citizen 1 youth colosseum 2 empire army. Arena amber amber dominus augustus quiet augustus bronze army arena augustus bronze. Amber quiet caesar 5 hill wine zone 9 caesar jewel 1 guard. 2 dinner 7 mosaic justice farmer 2 quiet echo 0 jar poet. Amber honor 8 king xiphos poet 5 dove quest justice forum plus. Yarn 9 road 2 divine 8 7 market zenith 8 keep urn. Poet 6 wall trader echo xenia law use 6 plus rome battle. Table nymph 2 soldier zeal temple ancient jar eagle market senator 1. Quill kettle 0 journey olive 6 victory honor road jewel temple colosseum. North zodiac man soldier xiphos 0 parade house jar 8 kettle 2. Bard zone xenia grain 5 jester land 6 caesar 5 parade quiet. Hill ruler poet 8 feast zeal chariot 8 quarry nymph prince lamp. Hill wheat parade plus 6 ox xenia 2 empire caesar farmer kettle. Keen 8 yard ox lamp temple hill quarry woman wine mare 2. Lion 6 rome 8 mosaic 5 yarn ox xylos citizen night god. Parade 5 citizen 8 hero youth slash hill scribe urn nymph gladiator. Year xylos xylos market rome jar gladiator noble bread zeal wheat 4. Dominus plus feast quarry justice colosseum land victory yard mare jewel quiet. Use house wall table yarn 2 use amber xeric river road night. Hymn 8 noble yarn jester war scribe trader 2 table town quill. Zeal hero zone 2 mosaic 4 wine coin grain 3 xeric colosseum. 6 legion hymn law 0 war rome quill feast valor hero 0. Wine 5 dinner king 8 9 ancient zeal 0 plus 8 arena. Imperial use nymph 9 2 quarry keep jester temple citizen divine mount. Xiphos 1 man 8 lion voice 5 wine wheat zenith table forum. Man 2 temple xenia mount dove zigzag hymn xeric 4 torch 7. Mare 2 officer feast officer zodiac 2 yard palace 2 4 colosseum. Lamp 4 brave trader vine quill xystus caesar jar 8 justice guard. 5 quest drum queen 8 zodiac 9 year dinner river umbra 7. Arena plus utterance 0 mosaic dominus quarry honor dinner echo man. Officer at evening xystus ancient man pillar legion evening.

My key:

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC5hWz9Cj1g2D7mJf2qE0jPaH8KxP5dQjF+Y9R2d87m Z8kUp6wTeXlU6+rbTn2SztajEms1QK0jO6vHRjTcnZmSx0pHj8K2BZXG5jL6C5pqhrP8fzC8QnPLhw P+6oX2EcfKk8yoLthQwWm2L6R8M5YoxCnGp5c8hy/hsUNgYXxmrJGnBZW4d+fQjClvYMJqUHwTY2u AxrRnh8NYJwsT2TtQZhZ2m4wCG3Xc6LhL0WrqFvh0w5Dk89Az0+8aIuN92qkjtcdMX1m8lV5wWZTf m2txmDZhX4T7M2OFOz2yP24Cl4BTVQXcJ8jG5qDQ8Z9yDRu7A+U0MdQH demo@example

I propose we make a new cipher alphabet which is more natural language and llm friendly in order to allow a more natural encoding, make it non case sensitive, no special characters, and have no header or footer, so that it is less detectable